public class Reader {
    private String reader_number;
    private String reader_name;
    private String reader_type;
    private String reader_phone;
    private String reader_password;
    private String reader_createtime;

    //下面的构造函数、get和set函数请用IDE自动生成
    //有些事，不需要费事就不费事
    //有些事，省了事也就没你什么事了

    //下面重载toString方法，请用IDE自动生成后做适当修改
   

}
